Fine-Grained Behavior and Lane Constraints Guided Trajectory Prediction Method

• URL: http://arxiv.org/abs/2503.21477v2
• Date: Tue, 01 Apr 2025 14:15:11 GMT
• Title: Fine-Grained Behavior and Lane Constraints Guided Trajectory Prediction Method
• Authors: Wenyi Xiong, Jian Chen, Ziheng Qi,
• Abstract summary: We present BLNet, a novel dualstream architecture that integrates behavioral intention recognition and lane constraint modeling.<n>Our network exhibits significant performance gains over existing direct regression and goal-based algorithms.
• Score: 3.303114252531234
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Trajectory prediction, as a critical component of autonomous driving systems, has attracted the attention of many researchers. Existing prediction algorithms focus on extracting more detailed scene features or selecting more reasonable trajectory destinations. However, in the face of dynamic and evolving future movements of the target vehicle, these algorithms cannot provide a fine-grained and continuous description of future behaviors and lane constraints, which degrades the prediction accuracy. To address this challenge, we present BLNet, a novel dualstream architecture that synergistically integrates behavioral intention recognition and lane constraint modeling through parallel attention mechanisms. The framework generates fine-grained behavior state queries (capturing spatial-temporal movement patterns) and lane queries (encoding lane topology constraints), supervised by two auxiliary losses, respectively. Subsequently, a two-stage decoder first produces trajectory proposals, then performs point-level refinement by jointly incorporating both the continuity of passed lanes and future motion features. Extensive experiments on two large datasets, nuScenes and Argoverse, show that our network exhibits significant performance gains over existing direct regression and goal-based algorithms.

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